« previous next »

Author Question: Sine 1990, the most dramatic reduction in US aggregate pollution levels is for A) ozone. B) ... (Read 46 times)

luvbio

  • Hero Member
  • *****
  • Posts: 623
on: Jul 14, 2018
Sine 1990, the most dramatic reduction in US aggregate pollution levels is for
 
  A) ozone.
  B) PM10.
  C) ozone and PM10.
  D) CO and SO2.

Question 2

The concentration of air pollution is ________ wind speed.
 
  A) proportional to
  B) inversely proportional to
  C) unaffected by
  D) always half of the


k.lashomb

  • Sr. Member
  • ****
  • Posts: 346
Reply #1 on: Jul 14, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Levels of protein structure. Levels of protein structure.
The Counteroffensive on Air Pollution The Counteroffensive on Air Pollution
Levels of hepatitis A antigens and antibody after infection. Levels of hepatitis A antigens and antibody after infection.
Levels of organization in striated muscle Levels of organization in striated muscle
Standard reduction potentials of the major respiratory electron carriers Standard reduction potentials of the major respiratory electron carriers
Parents who have higher levels of education encourage their children to be educated Parents who have higher levels of education encourage their children to be educated
Video: Audiology

For a complete list of videos, visit our video library